1. School of Health and Welfare Dalarna University Falun Sweden
2. School of Information and Engineering/Statistics Dalarna University Falun Sweden
3. Division of Nursing Department of Neurobiology, Care Sciences and Society Karolinska Institute Stockholm Sweden
4. Theme Inflammation and Ageing, Unit Nursing Ageing Karolinska University Hospital Huddinge Sweden
5. Research and Development UnitStockholms Sjukhem Stockholm Sweden
6. School of Health, Care and Social Welfare Mälardalen University Västerås Sweden